The Cydintosh is a DIY project that runs a Macintosh Plus emulator on an ESP32 Cheap Yellow Display (CYD) with a 240×320 touchscreen. Beyond nostalgia, it adds modern functionality: Wi-Fi connectivity, a weather app that pulls data from Home Assistant via MQTT every hour, and IPC-based app polling. The project is fully open source with code, 3D-printed shell schematics, and instructions available on GitHub.
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